A private period tracker that encrypts your data
Period data is some of the most sensitive data you generate. Femora encrypts it at rest, ships no ad SDKs, never sells it, and deletes it completely when you ask - because the subscription is the business model, not you.
Why privacy matters in a period app
Cycle logs can reveal pregnancies, miscarriages, and health conditions. Since the Dobbs decision, privacy researchers and regulators have repeatedly flagged period apps that shared health data with advertisers and analytics companies - and users noticed: "period tracker that doesn't sell data" became a search in its own right. The uncomfortable truth is that most free trackers are funded by advertising, and advertising runs on data.
A genuinely private tracker is not a marketing claim - it is a set of verifiable design decisions. Here is what to check, in any app, and how Femora handles each one.
1. Encryption at rest
Health data should be unreadable if storage is ever accessed directly.
In Femora: Cycle data and uploads are encrypted at rest with AES-256-GCM. Database backups are additionally encrypted.
2. No advertising SDKs
Ad SDKs are how period data historically leaked to ad networks - the tracker inside the tracker.
In Femora: The Femora app ships no third-party advertising SDKs. There is no ad network to leak to.
3. A business model that isn't your data
Free apps have to be paid for somehow. If you can't tell how, the answer is often your data.
In Femora: Femora is paid-only: $2.99/month or $29.99/year after a 7-day trial. Subscriptions fund the product, so your data never has to.
4. Deletion that actually deletes
Many apps deactivate accounts but keep the data. A private tracker erases it.
In Femora: Deleting your account removes your user record and health data and cancels your subscription in the same step - no support ticket needed. Deletion completes within 30 days, as our privacy policy spells out.
5. Plain-language privacy policy
You should be able to understand what is collected and why without a law degree.
In Femora: Our privacy policy states what we collect, why, and what we never do with it.
How Femora compares
We publish head-to-head comparisons with the apps people switch from, covering privacy, price, and features:
Frequently asked questions
Is my period data private in Femora?
Yes. Your health data is encrypted at rest with AES-256-GCM, the app ships no third-party advertising SDKs, and your data is never sold or shared with data brokers. Deleting your account removes your data and cancels your subscription in one step, with deletion completing within 30 days as described in our privacy policy.
Can period tracking apps sell my data?
Some free apps monetize through advertising and data sharing, and regulators have taken action against period apps for sharing health data with third parties. Femora is paid-only ($2.99/month), so the subscription is the business model - your data is not.
What should I look for in a private period tracker?
Five things: encryption of health data at rest, no advertising SDKs inside the app, a business model that does not depend on your data, account deletion that actually erases your data, and a privacy policy that states plainly what is collected and why.
Does Femora work without sharing data with advertisers?
Yes. There are no ad networks in the app, so there is nothing to share with advertisers. Femora is funded by subscriptions, not advertising.
What happens to my data if I delete my Femora account?
Account deletion removes your user record and health data and cancels any active subscription. It is a real deletion, not a deactivation: it completes within 30 days, except where a copy must be kept to meet a legal requirement, as our privacy policy spells out.
Read the details
The specifics live on our Privacy & Encryption feature page and in the privacy policy. Or just start the 7-day free trial and see for yourself.